Various status flags for the current lesson.

Bit(s)	Meaning
0	End of lesson/playtime (always reset)
1-3	Unused
4	Next lines reprimand for the teacher fetching the truant ERIC (toggled by 30636)
5	Set after a teacher has found the truant ERIC (see 30636)
6	Set after a classroom lesson has started with ERIC present (see 62208) (checked by 30636; reset by 26342)
7	Set after EINSTEIN has had a chance to grass on the absent ERIC (see 62208), or after dinner has started (see 31854) (checked by 30636; reset by 26342)